"Transaction commit failed"

[mexicantarget]

Hello,

I operate a Micro-Wallet platform called FaucetHub.io. We send out daily withdraws grouped by 480 addresses on a daily basis. The last couple of days we have had an issue with our Bitcoin wallet which produced an error I've not seen before and cannot find any information on.

Here is the error from my debug.log:

Code:

2017-05-21 20:00:01 AddToWallet 4951cddb3aebed0b08948ca1cf0d0cad51c4e9b57270dd3b9e2fcbb265b8ac01  new
2017-05-21 20:00:01 CommitTransaction(): Error: Transaction not valid

The error which the wallet throws:

Code:

Transaction commit failed

After this happens the TX is stuck inside my wallet and does not appear on any block explorer. All transactions are sent via an automated system, and this particular situation breaks that and requires manual intervention. Up until a few days ago we were running fine and without any such errors like this one.

I've restarted the wallet daemon twice, and updated to the latest stable version. I've also done a -rescan.

Bitcoin Client Software and Version Number:  "version": 140100,
  "protocolversion": 70015,
  "walletversion": 130000,
Operating System: Ubuntu 14.04 64-bit
System Hardware Specs: 8GB Ram, quad core CPU server
Any Related Transaction IDs: 4951cddb3aebed0b08948ca1cf0d0cad51c4e9b57270dd3b9e2fcbb265b8ac01
Screenshot of the problem: Running on a server so no screenshots
Log Files from the Bitcoin Client: See above

[achow101]

What RPC command are you using to make the transaction? Can you post the full output of the error for the RPC command? There should be something in there that gives the reason.

[mexicantarget]

What RPC command are you using to make the transaction? Can you post the full output of the error for the RPC command? There should be something in there that gives the reason.

Hello, thanks for posting. I'm using the "sendmany" command. Unfortunately I don't have the full raw response logged, only the error. I've added a log for it now so the next time it comes up I can post that. Thanks.